Practical Solutions

Our scientists and engineers develop and implement innovative, practical solutions to some of our planet’s most pressing problems—from combating global warming and developing sustainable ways to feed, power, and transport ourselves, to fighting misinformation, advancing racial equity, and reducing the threat of nuclear war.

Our history and accomplishments >

You + Science = Results

We rely on individuals like you for funding, not the government or corporations, which preserves our independence and integrity. With more than 500,000 supporters—parents, businesspeople, scientists, engineers, teachers, and students—we’re united by a central concern: that we need sound scientific analysis—not political calculation or corporate hype—to create a healthy, safe, and sustainable future.

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Recognized Leadership

We are pleased that UCS continues to receive recommendations from the United States’ premier charity rating agencies, Charity Navigator, the Better Business Bureau, and the American Institute of Philanthropy. Your investment in the Union of Concerned Scientists is all the more valuable, because to preserve our integrity we do not accept corporate or government grants. Your gift is building a healthy planet and a safer world. UCS is a 501c3 nonprofit organization and all gifts are tax deductible.

Defend science today >

2015 Annual Report

Challenging times require innovative, science-based solutions. The Union of Concerned Scientists has them. So, while politicians in Washington stood still on issues ranging from climate change and healthy food to clean energy and vehicles, we worked with decision makers around the country who recognize the need for change—and made real progress in 2015.

Read the report >

We Need Your Support
to Make Change Happen

We can ensure that decisions about our health, safety, and environment are based on the best available science—but not without you. Your generous support helps develop science-based solutions for a healthy, safe, and sustainable future.